After performing in-place upgrade from 2.4.3-RELEASE-p1 to 2.4.4 DHCPV6 client fails to retireve a WAN address
I upgraded my system a few days ago and realized last night that the hosts were no longer receiving IPV6 addresses. The ISP is Cox Communication using dual stack with IPV6 auto configuration and prefix delegation.
I tried everything, I could think of, (but I am not an expert in the internal settings for this router) to get IPV6 running on 2.4.4, with no joy. I restored the VM guest to a time before the upgrade and it's all back online.
For now, I will have to leave the system at 2.4.3 as IPV6 is actually quite important to us.
I am certainly willing to perform diagnostic tasks but do not assume I know where and how to collect various logs. It would be a simple matter for me to shutdown the VM hosting the router, take a snapshot and upgrade. I can always revert to the snapshot.
Any thoughts on what happened or how to proceed?